如何设置@Async方法线程优先级- spring-boot？

@Configuration
@EnableAsync
public class AsyncConfig implements AsyncConfigurer {
    
    @Override
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setThreadFactory(new CustomThreadFactory());
        executor.initialize();
        return executor;
    }
    
    // other AsyncConfigurer methods...
}

public class CustomThreadFactory implements ThreadFactory {
    
    @Override
    public Thread newThread(Runnable r) {
        Thread thread = new Thread(r);
        thread.setPriority(Thread.NORM_PRIORITY); // 设置线程优先级为普通优先级
        return thread;
    }
}

@Service
public class MyService {
    
    @Async
    public void asyncMethod() {
        // 异步执行的方法体
    }
}